Re: [cfg80211 / iwlwifi] setting wireless regulatory domain doesn't work.

From: Sander Eikelenboom
Date: Wed Oct 23 2013 - 08:29:02 EST

Ping ?

Friday, October 18, 2013, 7:43:49 PM, you wrote:

> Hi,

> I'm trying to change the regulatory domain for my wireless adapter:
> Intel Corporation Centrino Advanced-N 6235

> But it fails to change from "world" to anything else (say "US")

> I enabled debug options used iwlwifi.debug=0x00043FFF for boot and added some printk's which i think should be triggered .. but they are not.
> It seems in function "reg_process_pending_hints" the processing is deferred,
> but from the code i don't see how it would ever be triggered to complete ?

> Hope some can give some hints to what could be going on ...

> Attached:
> - full syslog from boot till "iw set reg US", which is done at "Oct 18 21:26:09"
> - patch.diff with the added debug printk's against 3.12-rc5 (it also contains the patch that was needed to suppress another warning in the iwlwifi driver.

> --
> Sander


--
Best regards,
Sander mailto:linux@xxxxxxxxxxxxxx

Attachment: patch.diff
Description: Binary data

Attachment: syslog
Description: Binary data

Wiphy phy0
Band 1:
Capabilities: 0x1072
HT20/HT40
Static SM Power Save
RX Greenfield
RX HT20 SGI
RX HT40 SGI
No RX STBC
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT TX/RX MCS rate indexes supported: 0-15, 32
Frequencies:
* 2412 MHz [1] (15.0 dBm)
* 2417 MHz [2] (15.0 dBm)
* 2422 MHz [3] (15.0 dBm)
* 2427 MHz [4] (15.0 dBm)
* 2432 MHz [5] (15.0 dBm)
* 2437 MHz [6] (15.0 dBm)
* 2442 MHz [7] (15.0 dBm)
* 2447 MHz [8] (15.0 dBm)
* 2452 MHz [9] (15.0 dBm)
* 2457 MHz [10] (15.0 dBm)
* 2462 MHz [11] (15.0 dBm)
* 2467 MHz [12] (15.0 dBm) (passive scanning, no IBSS)
* 2472 MHz [13] (15.0 dBm) (passive scanning, no IBSS)
Bitrates (non-HT):
* 1.0 Mbps
* 2.0 Mbps (short preamble supported)
* 5.5 Mbps (short preamble supported)
* 11.0 Mbps (short preamble supported)
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
Band 2:
Capabilities: 0x1072
HT20/HT40
Static SM Power Save
RX Greenfield
RX HT20 SGI
RX HT40 SGI
No RX STBC
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT TX/RX MCS rate indexes supported: 0-15, 32
Frequencies:
* 5180 MHz [36] (15.0 dBm) (passive scanning, no IBSS)
* 5200 MHz [40] (15.0 dBm) (passive scanning, no IBSS)
* 5220 MHz [44] (15.0 dBm) (passive scanning, no IBSS)
* 5240 MHz [48] (15.0 dBm) (passive scanning, no IBSS)
* 5260 MHz [52] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5280 MHz [56] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5300 MHz [60] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5320 MHz [64] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5500 MHz [100] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5520 MHz [104] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5540 MHz [108] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5560 MHz [112] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5580 MHz [116] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5600 MHz [120] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5620 MHz [124] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5640 MHz [128] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5660 MHz [132] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5680 MHz [136] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5700 MHz [140] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5745 MHz [149] (15.0 dBm) (passive scanning, no IBSS)
* 5765 MHz [153] (15.0 dBm) (passive scanning, no IBSS)
* 5785 MHz [157] (15.0 dBm) (passive scanning, no IBSS)
* 5805 MHz [161] (15.0 dBm) (passive scanning, no IBSS)
* 5825 MHz [165] (15.0 dBm) (passive scanning, no IBSS)
Bitrates (non-HT):
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
max # scan SSIDs: 20
max scan IEs length: 195 bytes
Coverage class: 0 (up to 0m)
Supported Ciphers:
* WEP40 (00-0f-ac:1)
* WEP104 (00-0f-ac:5)
* TKIP (00-0f-ac:2)
* CCMP (00-0f-ac:4)
Available Antennas: TX 0 RX 0
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* monitor
software interface modes (can always be added):
* AP/VLAN
* monitor
valid interface combinations:
* #{ managed } <= 1, #{ AP } <= 1,
total <= 2, #channels <= 1, STA/AP BI must match
* #{ managed } <= 2,
total <= 2, #channels <= 1
Supported commands:
* new_interface
* set_interface
* new_key
* new_beacon
* new_station
* new_mpath
* set_mesh_params
* set_bss
* authenticate
* associate
* deauthenticate
* disassociate
* join_ibss
* join_mesh
* set_tx_bitrate_mask
* action
* frame_wait_cancel
* set_wiphy_netns
* set_channel
* set_wds_peer
* Unknown command (84)
* Unknown command (87)
* Unknown command (85)
* Unknown command (89)
* Unknown command (92)
* connect
* disconnect
Supported TX frame types:
* IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* Unknown mode (10): 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
Supported RX frame types:
* IBSS: 0x40 0xb0 0xc0 0xd0
* managed: 0x40 0xd0
* AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* mesh point: 0xb0 0xc0 0xd0
* P2P-client: 0x40 0xd0
* P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* Unknown mode (10): 0x40 0xd0
Device supports RSN-IBSS.
WoWLAN support:
* wake up on disconnect
* wake up on magic packet
* wake up on pattern match, up to 20 patterns of 16-128 bytes
* can do GTK rekeying
* wake up on GTK rekey failure
* wake up on EAP identity request
* wake up on rfkill release
HT Capability overrides:
* MCS: ff ff ff ff ff ff ff ff ff ff
* maximum A-MSDU length
* supported channel width
* short GI for 40 MHz
* max A-MPDU length exponent
* min MPDU start spacing
Device supports TX status socket option.
Device supports HT-IBSS.